1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2d613b2fde376fecc348ea5dafa9a296345e1d2773173a1c94c456fb397270. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2fb67f3-20e7-4167-998a-200bee0a5873.json and https://artists.proofprofile.net/proofs/artist/e2fb67f3-20e7-4167-998a-200bee0a5873.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240f7f75f8013579ffdf3ea301c04d8590188754d13e0398f9c010137b583a4f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA480900021.
Pearl Ibiza Closing Collection - Selected By Sante Cruze
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b38ef2ee2f6eba561437abd263a737c0ff34e63031c2d2edc7a632cf28badda. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA480900620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5b6f517bec947d840592cfa664d85d2b7a22ebce0f64521beb0ac6db0a5078. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA488900787.
Something on My Mind (Crazibiza Terrace Mix)
Something on My Mind - Crazibiza L2L Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d43aa09f59adc2bc049596458cdeb0964826b8a3165d64bbe506cc82e11cc27. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA420900865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb336f9055b3a0d724b79efd8d0f0f1a352c7dabf64b71c56d586ba7d3a8f2216. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA480900928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe028fd05e38b28c47624751f2c08de51c6ea15ad901900fef585a0214067ea. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA480901078.
Luxury Disco - Ultimate House Disco Grooves 2018 Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33a7d943c003131c7b1d9237176123a1d56e49d758385ef7aabb102fb9688f2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA470900615.